Means for promoting combustion



C. McVEETY.

MEANS FOR PROMOTING COMBUSTION. APPLICATION FILED APR. 15, 1921.

1,398,300 4 Patented Non 29,1921.

UNHTE CHARLES MGVEET'Y, 03E CHELTENHAM, PENNSYLVANIA;

MEANS FOR EROMOTING COMBUSTION.

Application filed April 15,

To all whom it may concern:

Be it known that CHAnLns MoVnnrY, a citizen of the United States, residing at Cheltenham, in the county of Montgomery and tato of Pennsylvania, has invented certain new and useful Improvements in Means for Promoting Combustion, of which the fol lowing is a specification.

My invention relates to that class of apparatus in which currents of heated air are introduced among the products of combustion for the purpose of insuring a. consumption of the carbonaceous portions.

It is well understood that smoke is caused by the improper combustion of fuel by reason of the fresh air, entering the incande cent coal from below through the grate, having often all its oxygen consumed before it has passed half-way through the layer of coal so that the upper part of the layer cannot burn but is simply heated by the underlying incandescent coal, while the products of the combustion of the lower layer of burning coal pass through the upper heated and not-burning layer and carry with them the combustible gases evolved by the heat, but which cannot take fire for the want of free oxygen.

Combustion is the result of a chemical union. of fuel material and the oxygen of the air dealing principally with hydrogen, oxygen, carbon and sulfur. These chemical combinations follow fixed laws in certain numerical values according to atomic weights. Oxygen will unite with carbon and gases if a suflicient supply of oxygen is permitted to enter the combustion chamber at the right point. The temperature of escaping gases in a chimney is about 600, which generally carries a quantity of unburned carbon.

In order to furnish these combustible gases ascending through the upper layer of coal with the necessary oxygen to burn 1 introduce air in the furnace by a tube projecting through the clean out door on the conventional radiator or hood on the usual type of heater, said tube extending horizontally within said radiator and then downwardly and having an air distributor at the terminus thereof, suspended or secured, substantially, in the center of the combustion chamber of said heater, at the point where the combustion is most intense, so that the gases may flow around same on all sides and thoroughly intermingle with the escap- Specifioation of Letters Patent.

Patented Nov. 29. 1921.

1921. Serial No. 461,479.

ing heated air from said distributor, in order that the said gases may ignite, thereby obtaining a more perfect combustion of the fuel and I gnovide an air distributer so constructed and positioned as to retain the heat and supply heated air currents without materially changing the course of the gases or interferingwith their free flow or chilling the fire.

In the drawing a Figure 1 is a vertical elevational view, partly in section, of a heater with my air distributor and its connections in position therein;

Fig. 2 is a side elevational view of the distributor and its connections; and

ig. 3 is a front view of the distributer numeral 10 represents a conventional type of V heater that is usually provided with a radiator or hood 11, and a combustion chamber 12 in the upper part thereof, between said radiator 11 and the fire bed 13. l

The outside or cool air is conducted to a distributor 14 by means of a conduit or tube 15 projecting through the clean out door 16 in the radiator 11. Said tube 15 extends horizontally across said radiator 11 and then downwardly by means of a threaded elbow joint 17. The other extremity of the elbow joint 17 is connected to an arm 18 of a four way or cross fitting 18 by means of a nipple 17. To the opposite arm 18 of the cross fitting 18 the distributor 14 is threaded. Extendible arms 19 and 20 are threaded on the horizontal arms 18 and 18* of the cross fitting 18; the threads thereon being of a sufficient length that said arms 19 and 20 may be extended horizontally from said cross fitting 18 in order that the free ends of said. arms 19 and 20 may rest or seat on a ledge 22 formed by a cup joint 21 provided on the upper open end of the heater 10; the radiator or hood 11 being positioned on said heater 10 by means of said cup socket 521.

The distributor 14 is provided with a solid head 24 facing the fire bed 13 and is substantially semi-circular in form, as illustrated, with orifices or openings 25 around the base thereof for the escape of the air entering said distributer 14: by means of the tube 15 and its connections.

The distributor 14: is thus positioned securely, substantially, in the center of the combustion chamber 12 over the fire bed 18 at the point where the combustion is most intense, so that the gases fiow around same and thoroughly intermingle with the escaping heated air from the distributer 14, through the orifices 25 therein, in order that said combustible gases may ignite. Said air distributer 14L acts as a carbureter.

I have thus described an apparatus that fulfils the requirements stated by heating authorities as requisite to obtain proper combustion, viz: a surplus of air, a thorough mixture of the fuel particles with the oxygen of the air and high temperature.

The portion of the tube 15 projecting through the door 16 is threaded at its terminus as indicated by the reference numeral 15 to receive the threaded portion of a nozzle like attachment 26 having the openings 27 therein and means whereby the air to be admitted to said tube 15 may be regulated asdesired. When it is desired to open the clean out door 16 the nozzle like attachment 26 is unscrewed from the projecting portion of the tube 15, the opening in the clean out door 16 through which the said tube'lo passes being large enough to permit of clearance of the end of said tube as said door is opened.

Various modifications may be made to the device without departing from the spirit and intent of the invention or the scope of the appended claim.

What I claim as new and desire to secure by Letters Patent is An apparatus for the promotion of combustion, comprising a furnace, a radiator secured over the upper open end thereof by means of a cup socket, an airinlet tube extending across said radiator and projecting from an opening in the side of said radiator, a tour fitting, connections between said inlet tube and the upper vertical arm of said fitting, an air distributer secured to the opposite arm of said fitting, extendible arms on the'horizontal arms of said fitting and means to position said arms on ledges formed by said cup socket whereby said distributer is secured centrally within the combustion chamber of said furnace, above the fire bed, at a point where the combustion is most intense, so as to be surrounded on all sides by the gases ascending from said fire bed whereby said gases may mix with the escaping air from said distributer, substantially as described.

in testimony whereof I anix my signature.

CHARLES MQVEETY. 

